What this catalogue is: the official AUMA catalogue (Chinese, 30 pages) for GS 50.3–GS 250.3 part-turn gearboxes — technical data, output torque tables, swivel angles, mechanical limits and handwheel options. GS gearboxes convert multi-turn output to 90° part-turn for butterfly valves, ball valves and dampers, mounted directly or via VZ/GZ bevel gear stages; output torque spans 250 Nm (GS 50.3) to 32,000 Nm (GS 250.3 at 100%).
| Model | 100% max Nm | 140% max Nm | 175%¹ max Nm | 200% max Nm | Modulating torque max Nm |
|---|---|---|---|---|---|
| GS 50.3 | 250 | 350 | – | 500 | 125 |
| GS 63.3 | 500 | 700 | – | 1,000 | 250 |
| GS 80.3 | 1,000 | 1,400 | – | 2,000 | 500 |
| GS 100.3 | 2,000 | 2,800 | – | 4,000 | 1,000 |
| GS 125.3 | 4,000 | 5,600 | – | 8,000 | 2,000 |
| GS 160.3 | 8,000 | 11,250 | 14,000 | – | 4,000 |
| GS 200.3 | 16,000 | 22,500 | 28,000 | – | 8,000 |
| GS 250.3 | 32,000 | 45,000 | 56,000 | – | 16,000 |
Note: ¹ the 175% step applies to GS 160.3–250.3 only. Duty depends on the mounted multi-turn actuator; standard rotation clockwise RR (LL/RL/LR optional).
| Item | GS 50.3 – GS 125.3 | GS 160.3 – GS 250.3 |
|---|---|---|
| Standard swivel angle | Max fixed 100°, factory-set 92° | Adjustable 80°–100°, factory-set 92° |
| Optional swivel angle | Steps 10°–35° up to 170°–190° | 20°–40° / 40°–60° / 60°–80° |
| Bronze worm | Above 190° possible (no mechanical limit, type GSD) | Above 100° possible (no mechanical limit, type GSD) |
AUMA部分回转蜗轮箱.pdf (Chinese, 30 pages, incl. limit-strength and handwheel tables and overall dimensions; selection per the tech-data sheet of your unit)
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